The Rinnai O-Ring (807000336) is a genuine OEM sealing component for i-Series Plus combination boilers. This O-ring creates a leak-free seal at hydraulic connections and assemblies within the water circuit. Aging, heat cycling, and water chemistry exposure can cause O-rings to harden, crack, or deform, leading to water leaks. Replace with this OEM O-ring during hydraulic service to maintain water circuit integrity and prevent component damage.
- Genuine OEM Rinnai replacement O-ring
- Compatible with Rinnai i-Series Plus combination boilers
- Provides a water-tight seal in the hydraulic circuit
- Withstands boiler operating temperatures and water chemistry
- Replace during any hydraulic assembly service